Question

Quick Question:


What is the standard form equation of the line shown below?

Graph of a line going through negative 3, negative 1 and 3, 2




y + 1 = one half (x + 3)
y = one half x + five halves
−x + 2y = 1
x − 2y = −1

Answer 1

@jim_thompson5910

Answer 2

what do you have so far?

Answer 3

I have hard time understanding graphs. :(

Answer 4

well first off, standard form is

Ax+By = C

for example, 2x+3y = 6 is in standard form

Answer 5

so you can cross off 2 choices

Answer 6

The first two?

Answer 7

yeah you can cross off the first two since they aren't in the form Ax+By = C

Answer 8

So, I think it's D.

Answer 9

right?

Answer 10

why D ?

Answer 11

Because the x doesn't have negative numbers

Answer 12

why not plug in each point to see if the equation is satisfied?

Answer 13

x - 2y = -1

-3 - 2(-1) = -1 ... plug in (x,y) = (-3,-1)

simplify both sides. Are the two sides equal?

Answer 14

Oh I see, Makes sense. thx..